volunteer to do sth和volunteer for sth什么意思当volunteer是名词时,这两个词组是什么意思?当volunteer是动词时,这两个词组是什么意思?最好附上例句.

volunteer to do sth.造句 有没有词组：volunteer to do sth 和 volunteer doing sth ? volunteer to do sth和volunteer for sth什么意思当volunteer是名词时,这两个词组是什么意思?当volunteer是动词时,这两个词组是什么意思?最好附上例句. volunteer这个单词有volunteer to do,volunteer doing,volunteer do这三个短语吗? wish to do sth和expect to do sth和hope to do sth的区别 to do sth 和 doing sth 常见短语to do sth 与 doing sth 不定式短语. need to do sth 和need do sth的区别 need to do sth 和need do sth列句 be to do sth和will do sth的区别 take action(s) to do sth和do sth to do sth use sth.to do sth.和do sth.with sth.意思一样吗 prefer to do sth than do sth和prefer to do sth raher than do sth的区别 want to do sth和want sth和区别 do sth to do prefer to do sth rather than do sth 和 prefer to do sth instead of doing sth 的区别是啥啦 The volunteer work you want to do stop to do sth 和stop doing sth的区别? need to do sth 和 need doing sth的区别?